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sergejj [24]
3 years ago
11

Calculate the energy required to freeze 378 grams of water to ice at 0°c​

Chemistry
2 answers:
ioda3 years ago
7 0

Answer:

What was the answer?

Explanation:

I have the same question

DerKrebs [107]3 years ago
3 0

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A car with a mass of 1.1 × 103 kilograms hits a stationary truck with a mass of 2.3 × 103 kilograms from the rear end. The initi
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The answer is C : 15.7 m/s
Use the idea of : momentum before collision = momentum after collision

Before collision;
For car:mass=1.1×10^3, velocity=22
For truck:mass=2.3×10^3, velocity=0
After collision;
For car:mass=2.3×10^3, velocity=-11
For truck:mass=2.3×10^3, velocity=V
(1.1×10^3 × 22) + (2.3×10^3 × 0) = (1.1×10^3 × -11) + (2.3×10^3 × V)
24200 = -12100 + 2.3×10^3V
2.3×10^3V = 36300
V = 15.7 m/s
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3 years ago
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Write the balanced equation for the burning of nonane, c9h20, in air.
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C9H20 + 14O2 --> 9CO2 + 10H2O
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Sedimentary and metamorphic :)


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2 years ago
What type of change occurs when water changes from a solid to a liquid? *
Arlecino [84]
Melting 

Melting is a change in property of matter from solid to liquid

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A chemistry instructor provides each student with 8 test tubes at the beginning of the year. If there are 28 students per class,
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